CVE-2016-5396
Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.
CVE-2016-5396 is a high vulnerability (CVSS 7.5) in Apache Traffic Server, published April 17, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.88%, the 86th percentile. Fixed in trafficserver 7.0.0-1.
Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.
- Record
CVE-2016-5396- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.
- Record
CVE-2016-5396- Updated
- 2026-11-02
EUVDEUVD-2016-6342 No score
Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.
- Record
EUVD-2016-6342- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4r32-4xgr-6w96
Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.
Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.
- Record
GHSA-4r32-4xgr-6w96- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.
- Record
CVE-2016-5396- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2016-5396
Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.
- Record
DEBIAN-CVE-2016-5396- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
trafficserverDebian:12 |
before 7.0.0-1 | 7.0.0-1 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |